How do you solve $x^{2} + 18 = 9 x$ $x^2 +18=9x$ ?

1 Answer

Apr 11, 2016

-3 and -6

Explanation:

$y = x^{2} - 9 x + 18 = 0$ $y = x^2 - 9x + 18 = 0$
Both roots are negative (Rule of Signs)
Find 2 real roots knowing sum (-b = 9) and product (c = 18).
They are: -3 and -6.

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